* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
.singleLineOmission {
  /*
      单行省略
    */
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

nav {
  color: #ffffff;
  text-align: center;
  line-height: 100px;
  height: 100px;
  font-size: 1.2em;
  font-weight: 600;
  letter-spacing: 3px;
}

.border {
  border: 1px solid #273353;
  border-radius: 40px;
  padding: 1em;
}

.title {
  letter-spacing: 3px;
  font-weight: 600;
}

.text {
  margin-bottom: 20px;
  font-size: 0.9em;
  color: #ffffff80;
}

.highlight {
  color: #66dbd9;
}
.flex {
  display: flex;
}
.flex-1 {
  flex: 1;
}
.flex-column {
  flex-direction: column;
}
.justify-center {
  justify-content: center;
}
.justify-around {
  justify-content: space-around;
}
.justify-between {
  justify-content: space-between;
}
.items-center {
  align-items: center;
}
.font-bold {
  font-weight: bold;
}
.flex-nowrap {
  flex-wrap: nowrap;
}
.flex-wrap {
  flex-wrap: wrap;
}
